#include <iostream>
#include <string>
#include <vector>

using namespace std;

int main()
{
    //用例输入多组字符串，且不知道输入多少组
    string str;
    while(cin >> str)
    {}
    
    //字符数组的输入
    int n;
    vector<char> s;
    char c;
    for(int i = 0; i < n; ++i)
    {
        cin >> c;
        s.push_back(c);
    }
    //这种最后要输入\0才结束，否则永远不会结束
    vector<int> vec;
    int x;
    while(cin >> x)
    {
        vec.push_back(x);
    }
    for(vector<int>::iterator it = vec.begin(); it != vec.end(); ++it)
    {
        cout << *it;
    }
    return 0;
}
